Something is bothering me with this gadget.

WARNING: this gadget can kill!

There are many types of "electricity probes". Some are "dangerous" for this modification and use.

Probes (ไขควงเช็คไฟ) fitted with "low voltage bulbs" or "leds" will short out and not light up -- giving false positive indication that it is safe (no electricity flow). This is deadly.

***Make sure that the probe (ไขควงเช็คไฟ) is rated for 240V AC.***

*** DO NOT USE any 12V-battery checker or in general any "cheap" probe. ***

***The light bulb or led can short out and NOT LIGHT UP where DEADLY high voltage exists***

When in doubts DO NOT BUILD or USE this gadget. REMEMBER, a mistake can mean YOUR LIFE.